I am on my trial period for Premium. I am trying Spotify because of the reputation for giving good song recommendations.
There is either an inconsistency or there is something I am doing wrong that someone can correct me. To refine my recommendations I should be able to give feedback on each song; whether I like it or not. I've had 2 listening sessions so far. On the first, I was seeing hearts next to tracks that I can click. On the second session, there were no hearts, but thumbs up/down buttons near the playback controls. Right now I don't see either. This is all within a few days. Surely there should be a consistent way to rate my recommendations.
When do I see each? And what is the difference between liking (hearts) and upvoting (thumbs up)?